2012 Volkswagen Jetta TDI Repair and Maintenance
A guide to problems, costs, maintenance and repair for your 2012 Volkswagen Jetta TDI
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2012 Volkswagen Jetta TDI ProblemsCheck Engine Light Due to Issues With Glow Plugs/Wiring Harness
Because of issues with the glow plugs and/or the glow plug wiring harness from the control relay, the Check Engine Light may illuminate. Our technicians tell us there is a service bulletin, not a recall from Volkswagen regarding replacement of the glow plugs on 2004-2005 model years only.
Rear door drivers-side. When using Keyless entry doors won't lock. The door above is culprit. All others lock. A short alarm sounds when all doors are locked. Presently no alarm sounds. Any suggestions for a fix. By the way I did use my second clicker which is brand new. Therefore battery is new.
Oil and carbon tend to build up, creating restrictions in the intake manifold. Symptoms will be loss of power (sometimes severe) and poor fuel economy.
2012 Volkswagen Jetta TDI QuestionsIn cold weather my coolant light flashes and beeps a few seconds after starting. (1 answer)
I can turn it off and start it again and the light/sound goes off. It appears it has to warm a little? I had the coolant level checked and it's fine.
2012 Volkswagen Jetta TDI RecallsPotential Diesel Fuel Leak
On the 2.0L TDI common rail Diesel engine/clean Diesel engine, fuel injection pulses could coincide with the natural frequency of injector line #2. This resonance creates additional stress on the fuel line. Small cracks could develop in the #2 injector line, resulting in a Diesel fuel leak. A fuel leak always increases the risk of a fire. Dealers will install an improved #2 fuel injector line and install vibration dampers on all of the injector lines to correct this concern. The Volkswagen/Audi recall number is 23J9/V5.